JP2944135B2 - Wireless communication device - Google Patents

Description

The present invention relates to a wireless communication device for mobile communication such as a selective call receiver.

(Prior Art) Conventionally, a selective call system is known as one of mobile radio systems. The selective call system, for example,
A selective call signal as shown in the figure is used. That is, the selective call signal is time-divided in one frame into a plurality of groups (n groups in the figure) as shown in (a), and these groups are further divided into a synchronization word and a plurality of call words (FIG. M words). These call words are composed of an individual number code (ID code) of the selective call receiver and a message code as shown in (c).

To call the desired selective call receiver, the caller dials the telephone number corresponding to the selective call receiver, calls the base station, and sends message information to the base station. Then, the base station first generates an ID code previously assigned to the selective call receiver and a message code obtained by encoding the message information. Then, the ID code and the message code are respectively inserted into empty call words of a group to which the selected call receiver belongs, among a plurality of groups forming one frame, and transmitted.

FIG. 8 shows an example of the configuration of a selective call receiver. In FIG. 1, a selective call signal transmitted from a base station is received by a radio circuit 2 via an antenna 1, then demodulated by a demodulation circuit 3 and introduced to a control circuit 4.
The control circuit 4 is included in the demodulated selective call signal.
The ID code is collated with the ID code of the own device stored in the individual number code memory (ID-ROM) 5 in advance. When a match between the two codes is detected by this collation, it is recognized that a call to the own device has occurred, and a sound signal is supplied to the speaker 7 via the drive circuit 6. For this reason, the speaker 7
Generates a ringing tone, thereby notifying the holder of the occurrence of the ringing. The ringing tone is stopped by pressing the stop switch 11.

When a match of the ID code is detected, the control circuit 4 performs error correction processing on the message code received following the ID code, decodes the message code, and further displays the message data obtained by decoding. Supply to circuit 8. Therefore, message information is displayed on the liquid crystal display (LCD) 9. Therefore, the bearer can know the message from the caller by looking at the LCD 9 at the time of calling notification. The received message code is
The message is transferred to and stored in the message memory (M-RAM) 10. The message code stored in the M-RAM 10 is
Later, it is read out by the operation of the display switch 12, and is displayed again on the LCD 9.

(Problems to be Solved by the Invention) By the way, this type of selective call receiver is configured such that the battery 13 is used as a power source, and the power is turned on and off by a user operating a manually operated power switch 14. I have. For this reason, if the owner forgets to turn off the power switch 14, power is consumed even during a time period when the power switch 14 is not substantially used, for example, at midnight, and as a result, the battery is wasted and the life is shortened. Had a problem. On the other hand, if the holder forgets to turn on the power switch, a problem arises in that the call cannot be received even if the caller makes a call, which is very undesirable.

The present invention focuses on the above circumstances, and aims to prevent a problem such as useless consumption of a battery and inability to call even if the user forgets to operate a power switch. An object of the present invention is to provide a wireless communication device capable of returning to a communication operation state.

It is another object of the present invention to provide a wireless communication apparatus which can control power supply by an existing control means and which can be realized with a simple circuit configuration.

Another object of the present invention is to prevent a problem such as useless consumption of a battery and inability to call the battery, and further reduce power consumption in a state where the power is turned off, thereby reducing battery consumption. An object of the present invention is to provide a wireless communication device that can further reduce the number.

[Configuration of the Invention] (Means for Solving the Problems) In order to achieve the above object, the present invention receives a call signal transmitted from a base station, and notifies a call when the call signal corresponds to the own device. , A storage unit for storing information on power supply time, a clock unit for outputting time information, and first and second power supplies. Supply control means. The storage means stores information indicating a supply start time and a supply end time of the power supply output to the wireless communication device main body. Then, when the time information output from the time keeping means matches the supply end time information stored in the storage means,
When the supply of the power output to the wireless communication device main body is stopped to set the power-off operation state, and in this power-off operation state, the time information output from the timer means matches the supply start time information stored in the storage means. The power supply output to the wireless communication device main body is restarted to set the power on operation state, and the operation of the function switch is monitored by the second power supply control means in the power off operation state. When the operation is detected, the power-off operation state is released and the power-on operation state is restored.

Further, in order to achieve the above object, the present invention further comprises a timekeeping means for outputting time information, and at least an existing control means for executing a predetermined control relating to detection and notification of a call. Power ON / OFF control is performed based on the output time information and information indicating at least one of a power supply start time and a supply end time set in advance.

In order to achieve the above and other objects, another present invention provides
As a means for generating a clock necessary for the operation of the control means, a first clock generating means for generating a first clock and a second clock for generating a second clock having a lower frequency than the first clock Generating means. Then, the control means sets the current time to the power supply time zone based on the time information output from the time keeping means and the information indicating at least one of the power supply output supply start time and the supply end time set in advance. In the case of
When the power supply is supplied to all means and the power supply is operated by the first clock and the current time corresponds to the power supply non-supply time zone, at least the reception of the control means except for the control means is performed. The supply of the power output to the means is cut off, and the device is operated by the second clock.

(Operation) As a result, according to the present invention, even if the holder forgets to operate the power switch, the power supply is automatically turned off or on at the time stored in advance. For this reason, there is no fear that wasteful power is consumed due to forgetting to turn off the power switch, thereby reducing wasteful consumption of the battery and extending the life of the battery. In addition, it is possible to reliably prevent a problem that a call cannot be made due to forgetting to turn on the power switch.

Further, according to the present invention, when the user operates the function switch during the power-off operation period, the power-off state is released when the operation is detected, and the apparatus returns to the reception operation state. Therefore, even if the power supply is set to be automatically turned off at night, for example, the user can immediately return the device to the communication operation state by operating the function switch. Therefore, for example, it is possible to cope with a case where it is necessary to make an emergency contact at night.

According to another aspect of the present invention, power supply control is performed by existing control means for performing control for detecting the occurrence of a call, so that a new control circuit for controlling power supply is provided. No need to provide. Therefore,
It can be realized with a relatively simple circuit configuration.

According to still another aspect of the present invention, the control means operates with the high-speed first clock during the power supply time period, and operates with the low-speed second clock during the power supply non- supply time period.
For this reason, compared to the case where the control means is always operated by the high-speed first clock, the power consumed by the control means for power supply control during the non-supply time period of the power supply is reduced. Can be further reduced.

(Embodiment) First Embodiment FIG. 1 shows a configuration of a selective call receiver according to a first embodiment of the present invention. 7, the same parts as those in FIG. 7 are denoted by the same reference numerals, and detailed description is omitted.

The selective call receiver according to the present embodiment includes a circuit block A and a circuit block B whose power systems are independent from each other. The circuit block A includes an antenna 1, a radio circuit 2, a demodulation circuit 3, a speaker drive circuit 6, a speaker 7, a display drive circuit 8, and an LCD 9. On the other hand, the circuit block B includes a control circuit 40 and its peripheral circuits such as ID-ROM5 and M-RAM1.
0, a stop switch 11, a display switch 12, a timer 16, a function switch 17, and a power supply time memory (T-RAM) 18.

Among them, the timer 16 performs a timing operation and outputs information representing the current time. The function switch 17 is a switch used to set the receiver to the power supply time input mode and to input the time. The power supply time memory 18 stores a power supply start time (power on time) and a power supply end time (power off time) input in the power supply time input mode.

The power supply circuit section is configured by a series circuit of a battery 13, a manually operated first power switch 14, and a second power switch 15 that is turned on and off under the control of a control circuit 40 described later. The power supply voltage Vcc output through the first power switch 14 is supplied to the circuit block B, while the power supply voltage Vcc output through the first and second power switches 14 and 15 is supplied to the circuit block A. To supply.

By the way, the control circuit 40 has, for example, a microprocessor (CPU) as a main control unit, and controls the battery saving control, the ID code collation, the call notification control, the message notification control, and the like, in which only the reception period of the group to which the own device belongs belongs. A power supply time setting control unit 41 and a power supply control unit 42 are provided in addition to normal control functions such as display control. When the power supply time setting mode is set by the function switch 17, the power supply time setting control means 41 monitors the operation of the function switch 17 and the display switch 12, and generates information of the power on time and the power off time. Then, control for storing this information in the T-RAM 18 is performed. The power supply control unit 42 monitors whether or not the current time of the timer 16 matches the power-on time or the power-off time stored in the T-RAM 18 during the call waiting, and if the time matches, the second time is used.
The power switch 15 is controlled to an on state and an off state, respectively.

Next, the operation of the selective call receiver configured as described above will be described according to the control procedure of the control circuit 40.

When the first power switch 14 is turned on, the control circuit 40 turns on the second power switch 15 in step 2a as shown in FIG. 2, and thereafter shifts to a call waiting state.

In this call waiting state, the control circuit 40 first performs control for battery saving in step 2b. That is, during a reception period other than the group to which the terminal belongs, the power supply voltage Vc to the radio circuit 2 and the demodulation circuit 3 is switched by a battery saving switch circuit (not shown).
The supply of c is cut off, thereby stopping the receiving operation. Then, in the reception period of the group to which the terminal belongs, the switch circuit is turned on to supply the power supply voltage Vcc to the radio circuit 2 and the demodulation circuit 3, thereby setting the reception operation state.

The control circuit 40 then proceeds to step 2c and step 2d
Monitor the operation of the display switch 12 and the function switch 17, respectively. Then, for example, when the display switch 12 is pressed in this state, the processing shifts to message display control. In this message display control, the received message codes stored in the M-RAM 10 are sequentially read in accordance with the operation of the display switch 12, and displayed on the LCD 9.

On the other hand, when the function switch 17 is pressed, the control circuit 40 shifts to the power supply time setting control. That is, as shown in FIG. 3, first, the stored power-on time is read from the T-RAM 18 in step 3a, and this time is blinked on the LCD 9.
Then, at steps 3b and 3c, the display switch 12
And the operation monitoring of the function switch 17 is repeatedly performed. In this state, it is assumed that the holder has pressed the display switch 12 now. Then, the control circuit 40 proceeds to step 3d and advances the power-on time by, for example, one hour. Then, in step 3a, the on-time of the T-RAM 18 is rewritten to this new time, and the LCD 9 is displayed blinking. This control is repeated each time the display switch 12 is pressed once. Therefore, the owner can set a desired ON time by using the display switch 12.

Then, it is assumed that the setting of the ON time is completed, and then the holder presses the function switch 17. Then, the control circuit 40
When it is determined that the setting of the power-on time has been completed, the process proceeds to step 3e, where the stored power-off time is read from the T-RAM 18, and the off-time is blinked on the LCD 9.
Then, in steps 3f and 3g, the display switch 12
And the operation monitoring of the function switch 17 is repeatedly performed. In this state, when the holder presses the display switch 12, the control circuit
Step 40 proceeds to step 3h, where the power-off time is advanced by, for example, one hour as in the case of setting the on-time. Then, in step 3e, the off-time of the T-RAM 18 is rewritten to this new time, and the LCD 9 is displayed blinking. This control is repeated each time the display switch 12 is pressed once. Therefore, the holder can set a desired off time by using the display switch 12. And
When the holder presses the function switch 17 after setting the ON time, the control circuit 40 detects this operation in step 3g and returns to the call waiting state.

When the power-on time and the power-off time are set in the T-RAM 18 in this way, the control circuit 40 executes the power supply control during the call waiting as follows. That is, during the call waiting, first, at step 2e, the timer 16
, And the power-off time is read from the T-RAM 18 in step 2f. In step 2g, it is determined whether or not the current time coincides with the power-off time. If not, it is determined that the current time has not yet reached the power-off time, and the process returns to step 2b.

On the other hand, if the current time reaches the power-off time,
The control circuit 40 detects this in step 2g and shifts to step 2h, where the second power switch 15 is turned off. Therefore, the circuit block A including the radio circuit 2 and the demodulation circuit 3 and the like
The supply of the power supply voltage Vcc to the receiver is cut off, and as a result, the selective call receiver enters a non-receiving operation state. Therefore, for example, if the power-off time is now set at 23:00, even if the owner forgets to turn off the power switch 14,
When the time reaches 23:00, the selective calling receiver automatically shifts to the non-receiving operation state. For this reason, after 23:00 when substantially no call is generated, no power is consumed in the circuit block A, whereby the consumption of the battery 13 is suppressed and the life of the battery 13 is extended.

On the other hand, during the power-off period, the control circuit 40 captures the current time in step 2i, and the T-RA in step 2j.
Reads the power-on time from M18. Then, in step 2k, it is determined whether or not the current time matches the power-on time,
If they do not match, it is determined that the current time has not yet reached the power-on time, and the process proceeds to step 21. This step 2l
Then, it is determined whether or not the function switch 17 has been pressed, and if not, the process returns to step 2i. And then the control circuit
Step 40 repeats the control during the power-off period by steps 2i to 2l.

On the other hand, if the current time matches the power-on time,
The control circuit 40 detects this in step 2k and returns to step 2a, where the second power switch 15 is turned on. For this reason, the power supply voltage Vcc is supplied to the circuit block A, and the selective call receiver is ready to accept the call. Therefore, if the power-on time is set at 7:00, the selective calling receiver automatically returns to the receiving operation state at 7:00. For this reason,
There is no worry that you will not be able to call if you forget to turn on the power switch.

The control circuit 40 returns to step 2a and turns on the second power switch 15 even when the holder presses the function switch 17 during the power-off period. For this reason, the holder operates the function switch 17 even during the power-off period,
The power-off operation state can be released as needed.

As described above, according to the present embodiment, the power-on time and the power-off time are set in advance, so that the selective call receiver can be automatically set in the receiving operation state even if the holder does not operate the power switch 14. And a reception stop state. For this reason, for example, during the night when substantially no call occurs, the reception operation can be stopped so that useless power consumption is not performed at all, and the life of the battery 13 can be extended. Also, during the time period when a call occurs, the selective call receiver can be reliably set to the receiving operation state. For this reason, there is no fear of being unable to call.

Further, in this embodiment, the setting control of the power supply time and the power supply control are performed by using the existing control circuit 40 which performs the normal control such as the reception control of the selective call signal, the collation of the ID code, and the call notification control. Since each of them is performed, there is an advantage that it can be realized with a simple circuit configuration without providing a new hardware circuit.

Second Embodiment FIG. 4 shows a main configuration of a selective call receiver according to a second embodiment of the present invention. The other parts of the selective call receiver are the same as those shown in FIG. 1 and are not shown in the figure.

The control circuit 400 of this embodiment is composed of a two-clock type microcomputer and has a microprocessor (CP
U) 401, a clock generation circuit 402, a timing generation circuit 403, and a clock selection circuit 404. The clock generation circuit 402 includes a first clock generation circuit 402
H and a second clock generation circuit 402L, and crystal oscillators 410H and 410L are connected to these clock generation circuits 402H and 402L, respectively. The first clock generation circuit 402H generates a high-frequency clock of, for example, 1.2 MHz based on the oscillation output of the crystal oscillator 410H. On the other hand, the second clock generation circuit 402L generates a low frequency clock of, for example, 32 KHz based on the oscillation output of the crystal oscillator 410L.

The clock selection circuit 404 selectively operates the first clock generation circuit 402H and the second clock generation circuit 40 according to the selection control signal output from the CPU 401.
The timing generation circuit 403 includes the clock generation circuits 402
A plurality of timing signals are generated based on the high frequency clock or the low frequency clock generated from H, 402L, and these timing signals are supplied to the CPU 401.

Next, the operation of the selective call receiver including the control circuit 400 as described above will be described.

When the first power switch 14 is turned on, the control circuit 400
The CPU 401 turns on the second power switch 15 in step 5a as shown in FIG. 5 (a), and outputs a clock selection instruction to the clock selection circuit 404 in step 5m, whereby the first clock generation circuit Set 402H to operating state.
Thereafter, the state shifts to a call waiting state. Therefore, in this call waiting state, the CPU 401 operates at high speed in synchronization with the timing signal generated based on the high-frequency clock generated from the first clock generation circuit 402H.

By the way, in this call waiting state, the control circuit 400 first performs control for battery saving in step 5b. That is, during a reception period other than the group to which the own device belongs, the supply of the power supply voltage Vcc to the wireless circuit 2 and the demodulation circuit 3 is cut off by a switch circuit for battery saving (not shown), thereby stopping the reception operation. Then, in the reception period of the group to which the terminal belongs, the switch circuit is turned on to supply the power supply voltage Vcc to the radio circuit 2 and the demodulation circuit 3, thereby setting the reception operation state.

The control circuit 400 then proceeds to step 5c and step 5c.
In d, the operation of the display switch 12 and the function switch 17 is monitored. Then, for example, when the display switch 12 is pressed in this state, the processing shifts to message display control. In this message display control, the received message codes stored in the M-RAM 10 are sequentially read in accordance with the operation of the display switch 12, and displayed on the LCD 9.

On the other hand, when the function switch 17 is pressed, the control circuit 400 shifts to setting control of the power supply time. This control is based on the third
Since it is the same as that shown in the figure, the description is omitted here.

In a state where the power-on time and the power-off time are set in the T-RAM 18, the control circuit 400 executes the power supply control during the call waiting as follows. That is, during the call waiting, first, the current time is taken from the timer 16 in step 5e, and the power-off time is read from the T-RAM 18 in step 5f. Then, in step 5g, it is determined whether or not the current time coincides with the power-off time, and if not, it is determined that the current time has not yet reached the power-off time, and step 5b is performed.
Return to

On the other hand, if the current time reaches the power-off time,
The control circuit 400 detects this in step 5g and shifts to step 5h shown in FIG. 5 (b). Then, in this step 5h, the second power switch 15 is turned off. For this reason,
The supply of the power supply voltage Vcc to the circuit block A including the radio circuit 2 and the demodulation circuit 3 is cut off, and as a result, the selective call receiver enters a non-receiving operation state. Therefore, for example, if the power-off time is set to 23:00, even if the owner forgets to turn off the power switch 14, the selective call receiver will not The state automatically shifts to the non-reception operation state. For this reason, after 23:00 when substantially no call is generated, no power is consumed in the circuit block A, whereby the consumption of the battery 13 is suppressed and the life of the battery 13 is extended.

In addition, the CPU 401 of the control circuit 400 outputs an instruction for changing the clock from the high frequency clock to the low frequency clock to the clock selection circuit 404 in step 5n. For this reason, the first clock generation circuit 402H
Thereafter, the second clock generation circuit 402L is activated, and as a result, a timing signal generated based on the low frequency clock is supplied to the CPU 401. That is, thereafter, the CPU 401 enters the power saving operation state.

During this power-off period, the control circuit 400 captures the current time in step 5i, and the T-RA in step 5j.
Reads the power-on time from M18. Then, in step 5k, it is determined whether or not the current time matches the power-on time,
If they do not match, it is determined that the current time has not yet reached the power-on time, and the flow shifts to step 51. This step 5l
Then, it is determined whether or not the function switch 17 has been pressed, and if not, the process returns to step 5i. And then the control circuit
In step 400, the control during the power-off period is repeated by steps 5i to 5l.

On the other hand, if the current time matches the power-on time,
The control circuit 400 detects this in step 5k, and in step 5a
The second power switch 15 is turned on here. Therefore, the power supply voltage Vcc is supplied to the circuit block A. Further, the CPU 401 of the control circuit 400 supplies an instruction for changing the clock to the high-frequency clock to the clock selection circuit 404 in step 5m. Therefore, a high-frequency clock is output from the clock generation circuit 402, and the CPU 401 subsequently operates in synchronization with a timing signal generated based on the high-frequency clock. That is, the CPU 401 enters a high-speed operation state, and thereby enters a state in which a call can be accepted.

Therefore, if the power-on time is set at 7:00, the selective calling receiver automatically returns to the receiving operation state at 7:00. For this reason, there is no fear that the call cannot be made due to forgetting to turn on the power switch.

The control circuit 400 returns to step 5a and turns on the second power switch 15 even when the holder presses the function switch 17 during the power-off period. Therefore, the holder can release the power-off operation state as needed by operating the function switch 17 even during the power-on period.

As described above, according to the present embodiment, as in the first embodiment, the power is automatically turned on and off, so that a waste time in a time zone where a call does not substantially occur, such as at night, is generated. Power consumption can be reduced, the life of the battery 13 can be prolonged, and a problem that the user cannot call the telephone due to forgetting to turn on the power switch can be reliably prevented.

Further, in the present embodiment, the CPU 401 is operated based on the high-speed clock during the power supply time period, the low-speed clock is selected during the non-power supply time period, and the CPU 401 is operated based on the low-speed clock. . Here, in general, the power consumption of a microcomputer tends to increase as the operation clock speeds up. Therefore, by using a low-speed clock as in the present embodiment, it is possible to further reduce the power consumption of the control circuit 400 during the non-supply time period of the power supply, thereby further extending the life of the battery 13. it can. Note that the control circuit 400
Since only the power supply control is performed during the power supply non-supply time period, even if a low-speed clock is used, there is no problem in the operation, and the operation can be sufficiently performed.

Third Embodiment FIG. 6 is a circuit block diagram showing a configuration of a selective call receiver according to a third embodiment of the present invention. 8, the same parts as those in FIG. 8 are denoted by the same reference numerals, and detailed description is omitted.

The selective call receiver of this embodiment is provided with a circuit block D constituting a power supply control unit in addition to a circuit block C constituting a selective call receiver main body. The power supply system of the circuit block D is independent of the circuit block C. That is, the output voltage Vcc of the battery 13 is supplied to the circuit block C in series via the first power switch 14 of a manually operated type and the second power switch 15 turned on / off by the power supply control unit. On the other hand, the circuit block D has an output voltage Vcc of the battery 13.
Is supplied only through the manually operated first power switch 14.

The power supply control unit includes a power supply control circuit 21 including a control LSI, and a timer 22 that generates current time information.
A power supply time memory (T-ROM) 23 in which a power-on time and a power-off time are stored in advance;
And The power supply control circuit 21 is a function switch
The second power switch 15 is turned on or off at the time when the current time of the timer 22 and the power-on time or power-off time of the T-ROM 23 coincide with each other while the 24 is on. .

Therefore, with such a configuration, when the current time of the timer 22 reaches the power-off time set in the T-ROM 23 in advance, the second power switch 15 is turned off by the power supply control circuit 21, whereby the selective call reception is performed. The supply of the power supply voltage Vcc to the main unit is cut off. For this reason, the selective call receiver main body is in a non-operation state, and no electric power is consumed.

On the other hand, in this non-operation state, the current time of the timer 22 is T-RO
When the power-on time set in M23 comes, the power supply circuit 2
1 turns on the second power switch 15. For this reason, the supply of the power supply voltage Vcc to the selective calling receiver main body is started, and as a result, the selective calling receiver main body is thereafter operated.

As described above, according to the present embodiment, the power supply to the selective calling receiver main body is automatically turned on and off according to the power-on time and the power-off time stored in the T-ROM 23. Therefore, even when the holder does not operate the power switch 14, the reception operation can be stopped so that useless power consumption is not performed at all, such as at night when substantially no call occurs. Thereby, the life of the battery 13 can be extended. Also, during the time period when a call occurs, the selective call receiver can be reliably set to the receiving operation state. For this reason, there is no fear of being unable to call.

Further, according to the present embodiment, the present invention can be realized without changing the configuration of the existing selective call receiver main body at all. Therefore, for example, an existing receiver can be provided with an automatic power supply function with a slight modification.

The present invention is not limited to the above embodiments. For example, in each of the embodiments described above, the case where the present invention is applied to a selective call receiver is described as an example. However, the present invention may be applied to other mobile wireless communication devices such as a mobile phone device, a car phone device, and a corded telephone device. Good. In addition, the configuration of the control circuit, the control procedure and the control contents of the power supply time setting control means and the power supply control means can be variously modified without departing from the gist of the present invention.

[Effects of the Invention] As described in detail above, the present invention receives a call signal transmitted from a base station, and issues a call notification when the call signal corresponds to its own device. In addition to a battery power supply for generating the power supply, a storage unit for storing information on a power supply time, a clock unit for outputting time information, and first and second power supply control units are provided. The storage means stores information indicating a supply start time and a supply end time of the power supply output to the wireless communication device main body. When the time information output from the time keeping means matches the supply end time information stored in the storage means, the first power supply control means stops supply of power supply output to the wireless communication device main body. When the power-off operation state is set, and the time information output from the timer means matches the supply start time information stored in the storage means in this power-off operation state, the supply of the power output to the wireless communication device main body is restarted. The operation of the function switch is monitored in the power-off operation state by the second power supply control means, and when the operation of the function switch is detected, the power-off operation state is set by the second power supply control means. It is released and returned to the power-on operation state.

Therefore, according to the present invention, even if the user forgets to operate the power switch, it is possible to prevent a problem such as wasteful consumption of the battery and inability to call the battery, and the user can return to the communication operation state as needed. It is possible to provide a wireless communication device capable of performing the above.

Further, another invention of the present invention is provided with a new timekeeping means for outputting time information, and at least the time information output from the timekeeping means by the existing control means for performing at least a predetermined control related to detection and notification of the call, Power ON / OFF control is performed based on information indicating at least one of a power supply start time and a supply end time set in advance.

Therefore, according to another embodiment of the present invention, it is possible to prevent a problem such as useless consumption of a battery and inability to call the battery, and also to perform power supply control by existing control means. A wireless communication device that can be realized by a circuit configuration can be provided.

According to still another aspect of the present invention, as means for generating a clock necessary for the operation of the control means, a first clock generating means for generating a first clock, and a second clock having a lower frequency than the first clock are provided. And second clock generating means for generating the clock. Then, the control means sets the current time to the power supply time zone based on the time information output from the time keeping means and the information indicating at least one of the power supply output supply start time and the supply end time set in advance. When the current time corresponds to the power supply non-supply time zone, the power supply output is supplied to all means, and when the current time corresponds to the power supply non-supply time zone, each means except for the control means is supplied. Turning off the supply of the power output to at least the receiving means of the means;
The clock is operated by the clock of FIG.

Therefore, according to this another aspect of the present invention, it is possible to further reduce the power consumption in a state where the power is turned off while preventing a problem such as wasteful consumption of the battery and inability to call the battery. A wireless communication device capable of further reducing battery consumption can be provided.

[Brief description of the drawings]

FIG. 1 is a circuit block diagram showing a configuration of a selective call receiver according to a first embodiment of the present invention, FIGS. 2 and 3 are flowcharts showing control means and control contents of a control circuit in the receiver. FIG. 4 is a circuit block diagram showing a main configuration of a selective call receiver according to a second embodiment of the present invention;
FIG. 5 is a flowchart showing a control procedure and control contents of a control circuit in the receiver, FIG. 6 is a circuit block diagram showing a configuration of a selective call receiver according to a third embodiment of the present invention, and FIG. FIG. 8 is a circuit block diagram showing an example of the configuration of a selective calling signal, and FIG. 8 is a circuit block diagram showing an example of the configuration of a conventional selective calling receiver. 1 antenna 2 radio circuit 3 demodulation circuit 5
... Individual number code memory (ID-ROM), 6 drive circuit, 7 speaker, 8 display drive circuit, 9 liquid crystal display (LCD), 10 message memory (M-RAM) ,
11 ... Stop switch, 12 ... Display switch, 13 ... Battery, 14 ... Manually operated first power switch, 15 ...
Second power switch, 16, 22, timer, 17, 24, function switch, 18, power supply time memory (T-RAM), 21
... power supply control circuit, 40, 400 ... control circuit, 41 ... power supply time setting control means, 42 ... power supply control means, 40
1 CPU CPU 402 clock generation circuit 402H first clock generation circuit 402L second clock generation circuit
403: Timing generation circuit, 404: Clock selection circuit, 410H, 410L: Crystal oscillator.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) H04B 7/24-7/26 102 H04Q 7/00-7/38

Claims (3)

(57) [Claims] A paging signal transmitted from a base station is received,
A wireless communication device that issues a call when the call signal corresponds to the own device; a battery power source that generates a power output; and information indicating a supply start time and a supply end time of the power output to the wireless communication device. A time-measuring means for outputting time information; and when the time information output from the time-measuring means coincides with the supply end time information stored in the storage means, When the supply of the power output is stopped and the power supply is turned off, and the time information output from the timing means matches the supply start time information stored in the storage means in the power off operation state, First power supply control means for resuming the supply of the power output to the wireless communication device main body and setting the power on operation state; and the power off operation Second power supply control means for monitoring the operation of the function switch in the state, and releasing the power-off operation state and returning to the power-on operation state when the operation of the function switch is detected. Wireless communication device. 2. A control device comprising: a receiving means for receiving a call signal transmitted from a base station; a battery power supply for generating a power output; a time measuring means for outputting time information; and a control unit. Based on the call signal received by the receiving means, means for executing at least predetermined control related to the detection of the call, and when the time information output from the timing means matches the predetermined supply end time information, Setting the power-off operation state by stopping the supply of the power output to at least the receiving means of each of the means excluding the control unit,
In this power-off operation state, when the time information output from the timing unit matches predetermined supply start time information, the supply of the stopped power output is resumed to return to the power-on operation state. First power supply control means for monitoring operation of the function switch in the power-off operation state, and releasing the power-off operation state and returning to the power-on operation state when the operation of the function switch is detected; A wireless communication device comprising: a second power supply control unit. 3. A receiving means for receiving a paging signal transmitted from a base station, a battery power supply for generating a power output, a clock means for outputting time information, a control unit, and a control unit required for the operation of the control unit. First clock generating means for generating a first clock; and second clock generating means for generating a second clock required for the operation of the control unit and having a lower frequency than the first clock. The control unit, based on the call signal received by the receiving means, performs at least a predetermined control related to the detection of the call, time information output from the timing means,
If the current time corresponds to a power supply time zone based on information indicating at least one of a supply start time and a supply end time of the power output set in advance, the power supply output to all means is determined. When the current time corresponds to the power supply non-supply time zone, the supply of the power output to at least the receiving means among the means excluding the control means is performed. And a wireless communication device that operates by the second clock.